I had the same problem before I was an admin I was accused of ping masking all the time I live in richmond,va and D.C is usually 5-20ms for me all the time watching for lag is all you can do and if you are kicked or ban I would just tell them where u leave and to be aware of the distance and they should look more closely before doing it again but kicking because of low ping is not a way to detect if you are ping masking -_-